How Often to Clean These 7 Bathroom Items

Let’s face it: Cleaning the bathroom probably isn’t anyone’s cup of tea. Whether it’s scrubbing gunk out of the bathtub drain or swishing a brush around the toilet bowl, it’s a dirty job, but someone's gotta do it.

You likely already know you should sanitize the toilet and other bathroom surfaces fairly regularly to prevent them from getting grubby. But how often do you really need to clean your shower curtain, bath towels, and other common items in your bathroom? We spoke to microbiology and public health experts to get the lowdown.

Because of the nature of the activities performed in the bathroom, these spaces are breeding grounds for bacteria, viruses, and other pathogens that can make us sick.

“Illnesses associated with your household bathroom are contagious,” says Michael G. Schmidt, PhD, a professor of microbiology and immunology at the Medical University of South Carolina in Charleston. “Consequently, you can ‘catch’ or acquire a virus, bacterium, or even a fungus from any number of objects in one of the most important rooms in your home.”

Dr. Schmidt warns the chain of infection often begins with one ”fugitive emission.” In a bathroom setting, this means a single person harboring a germ can contaminate a surface, effectively passing the infectious agent to the next person who touches it.

Such pathogens include enteroviruses, such as the norovirus (commonly referred to as the “stomach bug”), influenza, and rhinoviruses (which cause the common cold). And since the bathroom is a high-touch area, with most people using it multiple times a day, these illnesses have a good chance of spreading there.

“Without proper cleaning and sanitation, germs are more likely to infiltrate our immune defenses,” says Karen Studer, MD, MPH, chair of preventive medicine at Loma Linda University in Loma Linda, California.

Because of these health hazards, bathroom items need to be cleaned regularly — typically daily or weekly, depending on the number of people in your household and how the room is used.

There are tons of bathroom cleaners on the market, and some are more effective for certain tasks than others.

First, it’s important to understand the difference between cleaning and disinfecting.

“Although the terms are used interchangeably, cleaning removes visible dirt, while disinfection kills germs or other disease-causing pathogens,” says Kadi Banjoko, PhD, an infection preventionist in the department of clinical epidemiology at The Ohio State University Wexner Medical Center in Columbus.

Disinfecting requires using a product that kills germs. “There are many products out there, but they generally kill the microbe through the delivery of a molecular ‘grenade,’” Schmidt says. “Something like bleach is a good example.”

From your shower curtain to the toilet bowl, here’s how often to clean common bathroom items.

1. Shower Curtain and Liner

You come face-to-face with your shower curtain and liner nearly every day and likely don’t give it much thought. But it’s important to keep these bathroom items clean for the sake of your health.

One of the biggest health concerns when it comes to your shower curtain and liner is mold, Dr. Studer says. She advises changing your shower curtain every six months, or sooner if it becomes moldy or visibly dirty to a point where it can’t be cleaned.

In between changes, Schmidt advises wiping down your shower curtain and liner regularly with a disinfectant. “Clean it more often if you routinely are bouncing water off the curtain and it lands on you,” he says. “Odor and your eyes can be your guide. If it looks dirty or smells funky, you have likely waited too long.”

2. Bathroom Towels

“A different towel is recommended to use on your buttock area because of the varying bacteria that naturally reside near there,” she says. “You do not want to spread anal bacteria to other parts of your body, especially for women.”

Accidentally transferring this bacteria to the vaginal area can cause urinary tract infections and other infections, Studer notes.

3. Toilet

“Toilets are some of the filthiest spots in the bathroom, obviously, because that is where poo and pee go down,” Banjoko says. “Seats should be disinfected daily or weekly, depending on the number and frequency of use.”

And if anyone in your household is experiencing diarrhea, vomiting, or a cold or flu, it’s crucial to disinfect more frequently to prevent the spread of infection, Banjoko says.

When it comes to how often you should replace your toilet brush, there’s no hard and fast rule, but Studer advises tossing yours and getting a new one if the bristles start to wear down or get discolored.

4. Shower

How often you clean your shower or bathtub will depend on your family size and how often it’s used.

“With some households, weekly or even monthly cleaning may suffice, especially if you have adults only and no kids who could mess up the tub,” Banjoko says. “Ideally, planning for weekly or biweekly cleaning or disinfecting is advised.”

Other households may need to do daily cleaning if the frequency of use of the bathroom or bathtub warrants it, she notes.

5. Sink and Other Surfaces

Like the shower or toilet, your bathroom sink and other surfaces can harbor illness-causing germs.

“If someone is displaying any sort of symptoms of an illness, rule of thumb is to clean those surfaces often, especially if they are vomiting or display symptoms of diarrhea,” Schmidt says.

“When it's not cold or flu season you can consider scrubbing surfaces at least once a week to be an important safety measure, and of course if you notice that the surfaces are soiled,” he adds.

6. Bath Mats and Rugs

Studer recommends cleaning your bathroom rugs at least monthly, though weekly is ideal. If you clean them regularly, replacing them can be at your discretion, she says. Though if they show signs of wear and tear or are falling apart, it’s probably time to toss them.

Scrub and disinfect any anti-slip shower mats anytime you clean your bathtub.

“Dry skin or cracks in the skin can allow any number of dermatophytes (fungi that infect the skin) to attach themselves to your foot,” Schmidt says.

An important way to prevent athlete’s foot is to keep surfaces you step on barefoot, including bathroom rugs and mats, sanitized. Also make sure your feet are completely dry before you put on socks, as moisture aids the production of fungi, Schmidt notes.

7. Doorknobs and Light Switches

Doorknobs and light switches are high-touch areas, making them fomites, or objects that can serve as an intermediary stopover for infectious germs.

“I recommend a daily wipe down of sink faucets, doorknobs, and light switches,” Studer says. “This can easily be accomplished with a premoistened disinfectant wipe.”

• Cleaning your bathroom regularly is crucial to prevent spreading bacteria and viruses.
• Swap out or wash bath towels every week, and clean bathroom rugs at least once a month.
• Disinfecting your toilet frequently, especially after illness, is important to minimize contamination and the spread of pathogens like salmonella.
• For cleaner and safer bathrooms, use disinfectants such as bleach, alcohol, or hydrogen peroxide to thoroughly sanitize surfaces.